Welcome To Website IAS

Hot news
Achievement

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)

VIFOTEC Award

- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Centres
Website links
Vietnamese calendar
Library
Visitors summary
 Curently online :  11
 Total visitors :  7481571

How plants signal danger long distances
Saturday, 2018/09/22 | 06:38:06

A video shows how seconds after a hungry caterpillar severs a leaf from the rest of the plant, a blaze of fluorescent light washes over the other leaves, signaling that they should prepare for future attacks by the caterpillar or its kin.

 

The fluorescent light tracks calcium as it goes through the plant's tissues, warning of a threat through electrical and chemical signals. University of Wisconsin-Madison Professor Simon Gilroy and his lab reveals how glutamate, an abundant neurotransmitter in animals, activates a wave of calcium when the plant is wounded. To see calcium in real time, Masatsugu Toyota, a postdoctoral researcher in Gilroy's lab, developed plants that produce a protein that only fluoresces around calcium, allowing the researchers to track its presence and concentration. They were able to see plants lighting up as calcium flows from the site of damage to other leaves.

 

A research previously done by Swiss scientist Ted Farmer showed that defense-related electrical signals depended on receptors for glutamate. Farmer showed that mutant plants missing glutamate receptors also lost their electrical responses to threats. Toyota and Gilroy looked at the flow of calcium during wounding in these mutant plants. They found that while normal plants blaze brightly with fluorescent calcium waves during wounding, mutant plants were barely sputtering marginal flashes of light. These results suggest that glutamate spilling out from wound sites triggers the burst in calcium that spreads across the plant.

 

To watch the videos, visit the University of Wisconsin-Madison website.

Back      Print      View: 386

[ Other News ]___________________________________________________
  • Brazil offers an extra US $ 17 million to FAO projects as new government takes helm
  • 2014 in review – Another busy year
  • Growing concern for South Sudan`s herders as conflict displaces millions of cattle
  • Biotech and Traditional Farming are Compatible Approaches to Sustainable Agri, Study
  • Report: Weed Control Changes and Herbicide Tolerant Crops in the USA 1996-2012
  • New Study Provides Better Understanding of the Genetic Basis for Drought Tolerant Soybeans
  • Wheat Gene Increases Blight Resistance of American Chestnut Trees
  • China Approves Imports of Biotech Crops
  • IndoBIC Holds Media Visit to Seed Industries in East Java
  • FAO food price index drops in December
  • Origin Receives Biosafety Certificate Renewal for its GM Phytase Corn in China
  • Biotech Rice Expressing CP4-EPSPS Shows Glyphosate Tolerance
  • UK Govt Adviser Calls for Use of Agri Technologies that ``Produce More with Less``
  • Genetic diversity a hidden tool in coping with climate change
  • Cutting down on Amazon deforestation: Watch, think, and act
  • USDA Deregulates Dicamba-Tolerant Cotton and Soybean
  • NAS Holds Workshop on Communicating about GMOs
  • Cell Wall Traits for a FHB Resistant Durum Wheat
  • Ag Biotech Vietnam Conducts Biotech Quiz Contest at Northwestern University
  • Viet Nam Launches National Zero Hunger Challenge

 

Designed & Powered by WEBSO CO.,LTD